He said air strikes had caused almost all the coalition's civilian casualties.

More than 6,000 people, about half of them civilians, have been killed since Saudi Arabia launched a multi-national campaign against rebels in March 2015.

Saudi Arabia has denied causing large-scale civilian deaths, saying it is making every effort to avoid hitting civilian targets.

Mr Hussein's comments come three days after some 106 civilians were killed in what medics and witnesses said was an air strike on a market in Mastaba, north-west Yemen, in one of the deadliest incidents of the war.